How to read an Array and save - php

Question

I'm trying to read an array to save some values but it doesnt work! Here's my code:
$array=$_POST['idprod'];//I get my array and save it on a var
print_r($array); //It has ALL the data (I use a print_r($array); And YES!! It has the information i need)
$ids[]=explode(',',$array);//Substring to my var
for( $contador=0; $contador <count($ids); $contador++ )
{
echo $ids[$contador].'<br/>';
}
It shows me Array to string conversion in...
What could I do?

Answer 1

use foreach Instead for loop
The foreach construct provides an easy way to iterate over arrays. foreach works only on arrays and objects, and will issue an error when you try to use it on a variable with a different data type or an uninitialized variable. There are two syntaxes:
foreach (array_expression as $value)
statement
foreach (array_expression as $key => $value)
statement
foreach ($array => $var ) {
// do any thing
}
replace
$ids[]=explode(',',$array);//Substring to my var
for( $contador=0; $contador <count($ids); $contador++ ) {
echo $ids[$contador].'<br/>';
and set
$ids = explode(',',$array);
foreach($ids as $id) {
echo $id ."<br>";
}

Answer 2

You only need to explode(), if the incomming data is a comma separated string.
$string = $_POST['idprod'];
$array= explode(',', $string); // split the comma separated values into an array
for($i=0; $i<count($array); $i++)
{
echo $array[$i] . '<br/>';
}
Else you can directly work with the incomming array:
$array = $_POST['idprod'];
for($i=0; $i<count($array); $i++)
{
echo $array[$i] . '<br/>';
}